A new study calls into question the age of the preserved human footprints found in New Mexico's Lake Otero Basin, which have the potential to revolutionize our understanding of the arrival of humans in North America if accurately dated. An ancient lakebed in New Mexico contains well-preserved foo
According to new research, the footprints that are believed to be evidence of ice age humans in North America need more accurate dating.
“It really does throw a lot of what we think we know into question,” says David Rhode, Ph.D., a paleoecologist at DRI and co-author of the new study. “That’s why it’s important to really nail down this age, and why we’re suggesting that we need better evidence.” At the center of the debate are the tiny seeds of an aquatic plant used to age the footprints. The timeframe for the seeds was identified using radiocarbon dating methods, in which researchers examine a type of carbon known as Carbon-14. Carbon-14 originates in the atmosphere and is absorbed by plants through.
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